Malicious PDF — malware analysis report

Static analysis result for SHA-256 82c388f6e686d4b2…

MALICIOUS

PDF

64.0 KB Created: 2021-02-26 07:08:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f40eba051cd9e0383ab3a99187b057e7 SHA-1: 3674594633663f611989ac8a40537169ac42fd4f SHA-256: 82c388f6e686d4b28d99e5869f26db2e3f0630368e904d773fcbd2fc8571fda1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://baarspo.ru/wb?keyword=who%20icd%2011%20codes PDF link annotation
    • http://jinevul.mygamesonline.org/73961876565.pdfIn PDF document text
    • http://instacopyrightcenter.com/bifezasazalazvnu2w.pdfIn PDF document text
    • http://fly-drive.online/53206000003eb5w3.pdfIn PDF document text
    • http://particulier-societegenerale.xyz/heath_ledger_toxicology93gii.pdfIn PDF document text
    • http://aydym.club/ill_be_gone_in_the_dark_netflix_ukjf1tu.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/zefudusawumujuzubesidoji.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/72333466280jt4ig.pdfIn PDF document text
    • http://wijetaz.mypressonline.com/dawegigunusewigo.pdfIn PDF document text
    • http://gidpopiteru.com/ar_15s_for_dummiesiogfv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zotijoxamofos.epizy.com/39374717032.pdfIn PDF document text
    • http://pozidijapepore.atwebpages.com/87575134771.pdfIn PDF document text
    • http://dekegafazuwad.rf.gd/nazotawapekugudon.pdfIn PDF document text
    • https://s3.amazonaws.com/xijuxosisomuna/pexowafopuka.pdfIn PDF document text
    • http://perevis.epizy.com/povedonobolesumakerewol.pdfIn PDF document text
    • http://javisan.epizy.com/98557727439.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F9 4752 bytes
SHA-256: 11c2840a722e73040facca124c3a4efb84fb115e7de43b882f2fac765d443ef2
font_01_sfnt_off0000d13c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD13C 10056 bytes
SHA-256: fb7068b60c6b47f61ed22880ad6552c313b12369b9f31909e22aa94c040e946d